.main_content ul {
    list-style: none;
}

.main_content ul li {
    width: 200px;
    height: 120px;
    float: left;
    margin: 10px
}

.main_content {
    background: #BBADA0;
    width: 740px;
    height: 460px;
    margin: 100px auto;
    border: 1px solid #959595;
    border-radius: 5px;
}

.main_content .item {
    width: 200px;
    height: 120px;
    line-height: 120px;
    text-align: center;
    cursor: pointer;
    background: #E5D8CB;
    border-radius: 5px;
    font-size: 26px;
    font-weight: bold;
    border: 1px solid #bbada0;
}

.main_content .item img {
    width: 200px;
    height: 120px;
    border-radius: 6px;
}